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A silver porringer created by John Coney, c. 1710, Birmingham Museum of Art. A porringer is a shallow bowl, between 4 and 6 inches (100–150 mm) in diameter, and 1 + 1 ⁄ 2 to 3 inches (38–76 mm) deep; the form originated in the medieval period in Europe and was made in wood, ceramic, pewter, cast iron and silver. They had flat, horizontal ...
In microbiology, the process of electroporation is often used to transform bacteria, yeast, or plant protoplasts by introducing new coding DNA. If bacteria and plasmids are mixed together, the plasmids can be transferred into the bacteria after electroporation, though depending on what is being transferred, cell-penetrating peptides or cell ...
It is used by all types of bacteria, as well as archaea, and chloroplasts and mitochondria of plants. [12] In bacteria, the Tat system exports proteins from the cytoplasm across the inner cell membrane; whereas in chloroplasts, it is present in the thylakoid membrane where it aids the import of proteins from the stroma. [ 13 ]
Cell spreaders. In microbiology, a cell spreader or plate spreader is a tool used to smoothly spread cells and bacteria on a culture plate, such as a petri dish.. Cell spreaders can be made from glass, plastic, or metal, and come in various shapes.
LB medium bottle and LB agar plate Plate medium agar LB. Lysogeny broth (LB) is a nutritionally rich medium primarily used for the growth of bacteria. Its creator, Giuseppe Bertani, intended LB to stand for lysogeny broth, [1] but LB has also come to colloquially mean Luria broth, Lennox broth, life broth or Luria–Bertani medium. [2]
A Show of Affection. When it isn’t trying to mind-control you with its stare, your cat might just be showing you some affection. Looking at you intently with a long, unblinking stare is one of ...
Hints and the solution for today's Wordle on Thursday, February 13.
The latest edition is the sixteenth from 2021. The text is widely used for college microbiology courses for students majoring in a biological science. In 1998, Brock helped update and contribute to a new version of René Dubos' 1960 book, Pasteur and Modern Science.